One thing systems theory shows is that a comprehensive social revolution is now extremely improbable. A revolution such as that envisioned by Marx and Engels is improbable because of functional differentiation. A limited revolution might be triggered in one system, but this might leave the other systems untouched or only slightly irritated. Those slightly irritated systems will then most likely adjust and carry on their operations. A political revolution might not significantly disturb the economic system, or vice versa. A scientific revolution or educational revolution might leave the legal system untouched. There isn’t a single lever we can move or a button we can push that will change all of society at once.